Bikeman Stage 2 Clutch Kit Double Barel Snypr Turbo R/Pro XP 21+SKU: 07 338 2 32" TIRES OR LARGER USE 07 338 OT Kit Includes: BMP 'HYPER ADJUST' Double Barrel Clutch Kit (93 157g) BMP Helix BMP primary spring BMP secondary spring Performance Gain 8 9 MPH in 300 feet on a stock machine Gain top speed over the stock clutching. Much better power transfer than the stock clutching Springs hold much better tension on the belt than factory Quicker back shifting when off the throttle More responsive feel Less belt slip